[U-Boot] [PATCH v4 08/10] NET: mvgbe: add phylib support

[Prafulla Wadaskar]

> -----Original Message-----
> From: u-boot-bounces at lists.denx.de [mailto:u-boot-
> bounces at lists.denx.de] On Behalf Of Sascha Silbe
> Sent: 27 May 2013 00:07
> To: u-boot at lists.denx.de
> Cc: Rabeeh Khoury; Luka Perkov; Daniel Stodden; Andy
> Fleming
> Subject: [U-Boot] [PATCH v4 08/10] NET: mvgbe: add
> phylib support
> 
> From: Sebastian Hesselbarth
> <sebastian.hesselbarth at gmail.com>
> 
> This add phylib support to the Marvell GBE driver.
> 
> Signed-off-by: Sebastian Hesselbarth
> <sebastian.hesselbarth at gmail.com>
> Acked-by: Prafulla Wadaskar <prafulla at marvell.com>
> Signed-off-by: Sascha Silbe <t-uboot at infra-silbe.de>
> ---
>  v3->v4: avoided unused variable warning; made
> checkpatch clean
> 
>  drivers/net/mvgbe.c | 74
> ++++++++++++++++++++++++++++++++++++++++++++++++-----
>  1 file changed, 68 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/net/mvgbe.c b/drivers/net/mvgbe.c
> index 47bf27c..7f0ddf5 100644
> --- a/drivers/net/mvgbe.c
> +++ b/drivers/net/mvgbe.c
> @@ -52,7 +52,7 @@ DECLARE_GLOBAL_DATA_PTR;
>  #define MV_PHY_ADR_REQUEST 0xee
>  #define MVGBE_SMI_REG (((struct mvgbe_registers
> *)MVGBE0_BASE)->smi)
> 
> -#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
> +#if defined(CONFIG_PHYLIB) || defined(CONFIG_MII) ||
> defined(CONFIG_CMD_MII)
>  /*
>   * smi_reg_read - miiphy_read callback function.
>   *
> @@ -184,6 +184,25 @@ static int smi_reg_write(const
> char *devname, u8 phy_adr, u8 reg_ofs, u16 data)
>  }
>  #endif
> 
> +#if defined(CONFIG_PHYLIB)
> +int mvgbe_phy_read(struct mii_dev *bus, int phy_addr,
> int dev_addr,
> +	int reg_addr)
> +{
> +	u16 data;
> +	int ret;
> +	ret = smi_reg_read(bus->name, phy_addr, reg_addr,
> &data);
> +	if (ret)
> +		return ret;
> +	return data;
> +}
> +
> +int mvgbe_phy_write(struct mii_dev *bus, int phy_addr,
> int dev_addr,
> +	int reg_addr, u16 data)
> +{
> +	return smi_reg_write(bus->name, phy_addr, reg_addr,
> data);
> +}
> +#endif
> +
>  /* Stop and checks all queues */
>  static void stop_queue(u32 * qreg)
>  {
> @@ -415,8 +434,9 @@ static int mvgbe_init(struct
> eth_device *dev)
>  {
>  	struct mvgbe_device *dmvgbe = to_mvgbe(dev);
>  	struct mvgbe_registers *regs = dmvgbe->regs;
> -#if (defined (CONFIG_MII) || defined (CONFIG_CMD_MII))
> \
> -	 && defined (CONFIG_SYS_FAULT_ECHO_LINK_DOWN)
> +#if (defined(CONFIG_MII) || defined(CONFIG_CMD_MII))
> &&  \
> +	!defined(CONFIG_PHYLIB) &&			 \
> +	defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN)
>  	int i;
>  #endif
>  	/* setup RX rings */
> @@ -467,8 +487,9 @@ static int mvgbe_init(struct
> eth_device *dev)
>  	/* Enable port Rx. */
>  	MVGBE_REG_WR(regs->rqc, (1 << RXUQ));
> 
> -#if (defined (CONFIG_MII) || defined (CONFIG_CMD_MII))
> \
> -	 && defined (CONFIG_SYS_FAULT_ECHO_LINK_DOWN)
> +#if (defined(CONFIG_MII) || defined(CONFIG_CMD_MII))
> &&  \
> +	!defined(CONFIG_PHYLIB) &&			 \
> +	defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN)
>  	/* Wait up to 5s for the link status */
>  	for (i = 0; i < 5; i++) {
>  		u16 phyadr;
> @@ -647,6 +668,45 @@ static int mvgbe_recv(struct
> eth_device *dev)
>  	return 0;
>  }
> 
> +#if defined(CONFIG_PHYLIB)
> +int mvgbe_phylib_init(struct eth_device *dev, int
> phyid)
> +{
> +	struct mii_dev *bus;
> +	struct phy_device *phydev;
> +	int ret;
> +
> +	bus = mdio_alloc();
> +	if (!bus) {
> +		printf("mdio_alloc failed\n");
> +		return -ENOMEM;
> +	}
> +	bus->read = mvgbe_phy_read;
> +	bus->write = mvgbe_phy_write;
> +	sprintf(bus->name, dev->name);
> +
> +	ret = mdio_register(bus);
> +	if (ret) {
> +		printf("mdio_register failed\n");
> +		free(bus);
> +		return -ENOMEM;
> +	}
> +
> +	/* Set phy address of the port */
> +	mvgbe_phy_write(bus, MV_PHY_ADR_REQUEST, 0,
> MV_PHY_ADR_REQUEST, phyid);
> +
> +	phydev = phy_connect(bus, phyid, dev,
> PHY_INTERFACE_MODE_RGMII);
> +	if (!phydev) {
> +		printf("phy_connect failed\n");
> +		return -ENODEV;
> +	}
> +
> +	phy_config(phydev);
> +	phy_startup(phydev);
> +
> +	return 0;
> +}
> +#endif
> +
>  int mvgbe_initialize(bd_t *bis)
>  {
>  	struct mvgbe_device *dmvgbe;
> @@ -729,7 +789,9 @@ error1:
> 
>  		eth_register(dev);
> 
> -#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
> +#if defined(CONFIG_PHYLIB)
> +		mvgbe_phylib_init(dev, PHY_BASE_ADR + devnum);
> +#elif defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
>  		miiphy_register(dev->name, smi_reg_read,
> smi_reg_write);
>  		/* Set phy address of the port */
>  		miiphy_write(dev->name, MV_PHY_ADR_REQUEST,
> --
> 1.8.2.1

Acked-by: Prafulla Wadaskar <prafulla at marvell.com>

Regards...
Prafulla . . .